Needle



No. 62l,950. Patented Mar. 28, I899. w. H. STEWART & A. N. AMES.

NEEDLE.

(Application filed May 12, 1897.)

(No Model.)

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UNTTEE STATES FEicE.

PATENT IVALTER H. STEWART AND ARTHUR N. AMES, OF FRANKLIN, NEW

HAMPSHIRE.

NEEDLE.

SPECIFICATION forming part of Letters Patent No. 621,950, dated March28, 1899.

\ Application filed May 12, 1897. Serial No. 636,206. (No model.

To all whom it may concern.-

Be it known that we, WALTER H- STEWART and ARTHUR N. AMES, of Franklin,in the county of Merrimac and State of New Hampshire, have inventedcertain new and useful Improvements in Needles, of which the followingis a specification.

This invention has for its object the production of a novel needle; andit consists in the novel features of construction and relativearrangement of parts hereinafter fully described in the specification,clearly illustrated in the drawings, and particularly pointed out in theclaim.

Reference is to be had to the accompanying drawings, forming a part ofthis application, in which like characters are used to indicate likeparts wherever they occur.

Figure 1 represents in side elevation a needle constructed in accordancewith our invention. Fig. 2represents aside elevation showing a way offorming the heel or lug part of the needle with which the knitting-camengages. Fig. 3 represents an edge elevation of the same.

Referring to the drawings, in the embodiment of our invention thereinshown and selected by us for the purpose of illustration, a represents aneedle, here shown as a knitting-needle of thekind commonly designatedas latch-needles. This needle comprises a shank portion, one end a ofwhich is formed with the usual hook c with which cooperates a latch a inthe usual manner. These parts may be of any desired construction. Thelug portion a of the shank is formed of sheet metal or flat steel and isconstructed separately from the latch portion of the shank, which isformed of wire or in the ordinary way. The two portions of the shank arethen placed end to end and are electrically welded together at a InFigs. 2 and 3 the lug is formed by splitting the metal and bending theparts to shape, as shown.

Other forms will suggest themselves to those skilled in the art; but theinvention is the same in both formsthat is to say, electrically weldingthe members of the shank of the needle together, whereby the needle maybe made in separate parts and fastened and the parts assembled. Byelectrically welding the parts are firmly bound together end to end asan entity without overlapping and may be tempered or manipulated as onepiece without the objections arising from the use of brazing material,the needle constructed in accordance with my invention having the samestrength at the point of weld as at anyother point, which is not true ofneedles having their parts brazed together. Moreover, the cost ofmanufacture of the needle is greatly reduced, since, as already stated,the needle may be made in separate parts and the parts afterward securedas stated, thereby permitting these parts to be made by stamping orbending. Moreover, the lug portion of the shank being constructed offlat steel or sheet metal affords a long wide hearing on the walls ofthe groovein the machine in which it is inserted. Thus there will not bethat tendency to spring or bend, as is the case sometimes when the wallsof the grooves are thin and the lug portion of the needle is round incross-section.

We do not limit ourselves to any particular form of needle, but considerour invention to apply to knitting-machine or other needles whose latchand lug members are electrically welded together, it being evident, ofcourse, that the weld may be made at any desired part of the needle-thatis, between the lug portion of the shank and the latch portion thereof.

Having thus explained the nature of our invention and described certainways of embodying the same, without, however, having attempted to setforth all of the forms in which in may be embodied or all the modesv ofits use, we declare that what we claim, and dedesire to secure byLetters Patent, is-- As a new article of manufacture, an improved needleconsisting of a latch member and a lug member, the latter being formedof sheet metal, each being formed separately and the twobeingelectrically welded together end to end and flush with each other at thepoint of meeting. In testimony whereof we have signed our names to thisspecification, in the presence of two subscribing witnesses, this 26thday of April, A. D. 1897.

IVALTER H. STEIVART. ARTHUR N. AMES.

Witnesses:

FRANK PROO'IOR, OALIX MORIN, Jr.

